Detection of microstructure characteristics of liquid atmospheric precipitation with the optical rain gage

Kalchikhin, V. V.; Kobzev, A. A.; Korolkov, V. A.; Tikhomirov, A. A.

doi:10.1134/s1024856016030064

Cited by 7 publications

(2 citation statements)

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“…In the next step, the selected data omitted all cases where the maximum intensity of precipitation did not exceed 5 mm/h [33,43]. As a result, 45 cases of heavy rainfall were identified and analyzed.…”

Section: Resultsmentioning

confidence: 99%

“…Incoming signals are proportional to the volume of droplets/hail stones. The RAINCAP sensor is able to measure the total precipitation amount with output resolution 0.01 mm and field accuracy for daily accumulation 5%; rain intensity (running one minute on average in 10-s steps and measuring range 0-2000 mm/h); rain duration with output resolution 10 s. The optical rain gauge OPTIOS, was designed in the IMCES [43,44] as a precipitation measurement unit for the automatic weather station AMK-03, and its modifications [42]. The functional scheme of this device is shown in Figure 2.…”

Section: Methodsmentioning

confidence: 99%

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Connected Variations of Meteorological and Electrical Quantities of Surface Atmosphere under the Influence of Heavy Rain

et al. 2020

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The electrical state of the surface atmosphere changes significantly under the influence of cloudiness and atmospheric phenomena, including atmospheric precipitation. These features can be used for possible diagnostics of precipitation and improvement of their characteristics based on variations of atmospheric-electrical quantities in the surface layer. Studies of variations of meteorological and atmospheric-electrical quantities in the surface layer were carried out during the heavy rainfall associated with the cumulonimbus (Cb) clouds passage. Meteorological and atmospheric-electrical observations in the Geophysical Observatory of the Institute of Monitoring of Climatic and Ecological Systems are presented in this paper. Precipitation data are used to identify periods of heavy rainfall ≥ 5 mm/h. Information of weather stations and satellites is used to separate the heavy rainfall events by synoptic conditions like thunderstorms and showers of frontal or internal air masses. We find that rains associated with the frontal Cb clouds produce more abrupt changes in negative electrical conductivity in comparison with the Cb clouds in internal air masses. The significant increase in negative electrical conductivity (more than two times vs. normal values) occurs typically during the passage of frontal Cb and heavy rain with droplet size greater than 4 mm.

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Section: Resultsmentioning

confidence: 99%